2006 Buick LaCrosse Owner's Manual - Page 315

5. To reinstall the cover, position the tabs through the slots on the housing. A notch on the sides of the filter cover will indicate the correct engagement. 6. Push the cover tabs on top of the housing to lock the cover in place. Automatic Transaxle Fluid When to Check and Change Automatic Transaxle Fluid A good time to check the automatic transaxle fluid level is when the engine oil is changed. {CAUTION: Operating the engine with the air cleaner/filter off can cause you or others to be burned. The air cleaner not only cleans the air; it helps to stop flames if the engine backfires. If it is not there and the engine backfires, you could be burned. Do not drive with it off, and be careful working on the engine with the air cleaner/filter off. Notice: If the air cleaner/filter is off, a backfire can cause a damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the air cleaner/filter in place when you are driving. Change the fluid and filter at the intervals listed in Additional Required Services on page 6-6, and be sure to use the transaxle fluid listed in Recommended Fluids and Lubricants on page 6-12. 5-21